[Android] Android Fullscreen Image Slider with Swipe and Pinch Zoom Gestures (轉貼)

來源:
http://www.androidhive.info/2013/09/android-fullscreen-image-slider-with-swipe-and-pinch-zoom-gestures/


remember to add permission as below,
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>